CN108795315A - 一种基于活性含氟聚酰亚胺的uv防粘抗酸保护膜 - Google Patents

一种基于活性含氟聚酰亚胺的uv防粘抗酸保护膜 Download PDF

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CN108795315A
CN108795315A CN201810536974.XA CN201810536974A CN108795315A CN 108795315 A CN108795315 A CN 108795315A CN 201810536974 A CN201810536974 A CN 201810536974A CN 108795315 A CN108795315 A CN 108795315A
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吴卓慧
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Ningbo Kelaien New Material Technology Co Ltd
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Abstract

本发明涉及一种基于活性含氟聚酰亚胺的UV防粘抗酸保护膜，由使用膜层、粘性剥离膜层组成；其中，粘性剥离膜层由剥离膜和压敏胶面Ⅰ组成，压敏胶面Ⅰ与使用膜层相连；使用膜层由基材膜、压敏胶面Ⅱ、UV保护膜层组成，压敏胶面Ⅱ、UV保护膜层位于基材膜的两面，压敏胶面Ⅱ与粘性剥离膜层相连；所述的UV保护膜层，由以下配方组成经光固化而成：活性含氟聚酰亚胺低聚物10～15重量份、光引发剂0.5～3重量份、聚氨酯丙烯酸酯15～30重量份、乙烯基聚硅氧烷5～10重量份、活性稀释剂8～15重量份、丙烯酸类流平剂0.2～0.5重量份。所述的UV防粘抗酸保护膜具有防粘、耐酸、高硬度以及耐高温的特点。

Description

一种基于活性含氟聚酰亚胺的UV防粘抗酸保护膜
技术领域
本发明涉及一种基于活性含氟聚酰亚胺的UV防粘抗酸保护膜，属于功保护膜技术领域。
背景技术
随着科技的发展，液晶显示器在我们生活中有着越来越广泛的应用，诸如手机、电脑、自动取款机(ATM)、电视等等。作为高品质产品，也需要各种各样的维护、保养，才能发挥它本身的最大效力，使用时间才能最大化。因此，各种不同功能的屏幕贴膜应运而生。
液晶屏会吸附各种灰尘，而灰尘是电磁辐射的重要载体，即使关掉了笔记本，电磁辐射仍然留在灰尘里，继续对人的健康产生危害；同时液晶显示器使用过程中常常会由于手指甲或其它硬物在显示屏上不断的划动，会在屏幕表面造成一定的刮伤、磨损，并由于人体汗液中尿酸腐蚀显示屏，从而影响产品的正常使用效果，人们常常会在电子产品的屏幕上贴一层保护膜对显示屏进行保护。因此很有必要解粘、抗酸、高硬度的保护膜材料。
中国专利CN201310725454.0涉及一种高硬度屏幕保护膜及其制备方法，该发明的制备方法包括如下步骤：A、采用辊涂机在PET保护膜的上表面涂布1～2层分散性丙烯酸树脂涂料，得到第一分散层；B、采用辊涂机在第一分散层的上表面涂布1～6层高硬度丙烯酸树脂涂料，得到第一高硬度层；C、采用辊涂机在PET保护膜的下表面涂布1～2层所述分散性丙烯酸树脂涂料，得到第二分散层；D、采用辊涂机在第二分散层的下表面涂布1～4层所述高硬度丙烯酸树脂涂料，得到第二高硬度层。本发明的制备方法制得的一种高硬度屏幕保护膜的表面硬度达到9H且透光性好，该保护膜还具有较好的耐溶剂性、抗擦伤性、耐磨性和耐刮性。但是由于该发明丙烯酸树脂涂料本身的缺点，其防粘、耐高温性及耐腐蚀性相对较差。
发明内容
为克服现有技术的缺点和不足，本发明旨在提供含一种基于活性含氟聚酰亚胺的UV防粘抗酸保护膜。
一种基于活性含氟聚酰亚胺的UV防粘抗酸保护膜，由使用膜层、粘性剥离膜层组成；其中，粘性剥离膜层由剥离膜和压敏胶面Ⅰ组成，压敏胶面Ⅰ与使用膜层相连；使用膜层由基材膜、压敏胶面Ⅱ、UV保护膜层组成，压敏胶面Ⅱ、UV保护膜层位于基材膜的两面，压敏胶面Ⅱ与粘性剥离膜层相连。
所述的基材膜为PET膜、PP膜、有机硅薄膜、聚氨酯薄膜中的至少一种；所述的剥离膜为PVC膜、PE膜中的至少一种；所述的压敏胶面Ⅰ、压敏胶面Ⅱ有压敏胶组成，所述的压敏胶为丙烯酸压敏胶、聚氨酯压敏胶、水性丙烯酸压敏胶、水性聚氨酯压敏胶中的至少一种。
所述的UV保护膜层，由以下配方组成经光固化而成：活性含氟聚酰亚胺低聚物10～15重量份、光引发剂0.5～3重量份、聚氨酯丙烯酸酯15～30重量份、乙烯基聚硅氧烷5～10重量份、活性稀释剂8～15重量份、丙烯酸类流平剂0.2～0.5重量份。
所述的活性含氟聚酰亚胺低聚物的制备方法，包括以下步骤：将30～35重量份的二氟均苯四甲酸酐、10重量份的对苯二胺加入到反应装置中，加入稀释剂配制成质量分数为50～70％的溶液，通氮气15～30min并启动搅拌器搅拌均匀，加热至100～130℃反应1～3h；然后缓慢升温至150～180℃，并加入0.05～0.5重量份的催化剂，150～180℃继续回流反应4～8h；然后缓慢降温至120～140℃，缓慢3～6重量份的活性封端剂，继续反应2～4h，然后冷却至室温，然后减压蒸馏除去稀释剂，即得活性含氟聚酰亚胺低聚物；其中，所述的催化剂为钛酸四异丙醇酯、三异丙醇铝酸酯、钛酸四丁酯中的至少一种，所述的活性封端剂为5-氨基-1-戊烯、丙烯酸羟丁酯、甲基丙烯酸羟丁酯中的至少一种。
所述的光引发剂为安息香乙醚、1-羟基-环己基苯基甲酮、安息香双甲醚、二苯甲酮、2-羟基-2-甲基-1-苯基-1-丙酮、2,4,6-三甲基苯甲酰二苯基氧化膦、双2,4,6-三甲基苯甲酰苯基氧化膦中的至少一种。
所述的乙烯基聚硅氧烷的粘度为20～100mPa·s，乙烯基含量为6％～10％。
所述的活性稀释剂为丙烯酸异冰片酯、甲基丙烯酸异冰片酯、二缩三羟甲基丙烷四丙烯酸酯中的至少一种。
所述的基于活性含氟聚酰亚胺的UV防粘抗酸保护膜的制备方法，包括下述步骤：
(1)将配方量的UV保护膜层施于基材膜一个表面上，然后经紫外灯照射硬化；然后将压敏胶施于上述基材膜的另一个表面，经干燥后，即形成使用膜层，其中，压敏胶一面即为压敏胶面Ⅱ。
(2)将压敏胶施于剥离膜层的一面，形成粘性剥离膜层，压敏胶一面即为压敏胶面Ⅰ；然后将粘性剥离膜层的压敏胶面Ⅰ粘于(1)中使用膜层的压敏胶面Ⅱ，即得基于活性含氟聚酰亚胺的UV防粘抗酸保护膜。
相对于本领域的其它技术，所述的基于活性含氟聚酰亚胺的UV防粘抗酸保护膜具有以下优点：在基材膜的两个表面施有UV保护膜层，UV保护膜层为采用特殊的活性含氟聚酰亚胺低聚物、乙烯基聚硅氧烷的UV光固化材料，由于氟、硅材料的低表面张力特性、耐腐蚀性，聚酰亚胺的耐高温、高硬度特性，因此本发明所述的保护膜，用于显示器表面后，具有防粘、耐酸、高硬度以及耐高温的特点。
具体实施方式
实施例1
一种活性含氟聚酰亚胺低聚物X的制备方法，包括以下步骤：
将30重量份的二氟均苯四甲酸酐、10重量份的对苯二胺加入到反应装置中，加入稀释剂配制成质量分数为60％的溶液，通氮气30min并启动搅拌器搅拌均匀，加热至100℃反应3h；然后缓慢升温至150℃，并加入0.5重量份的三异丙醇铝酸酯，150℃继续回流反应8h；然后缓慢降温至120℃，缓慢3重量份的丙烯酸羟丁酯，继续反应4h，然后冷却至室温，然后减压蒸馏除去稀释剂，即得活性含氟聚酰亚胺低聚物X。
实施例2
一种活性含氟聚酰亚胺低聚物Y的制备方法，包括以下步骤：
将35重量份的二氟均苯四甲酸酐、10重量份的对苯二胺加入到反应装置中，加入稀释剂配制成质量分数为70％的溶液，通氮气20min并启动搅拌器搅拌均匀，加热至120℃反应2h；然后缓慢升温至160℃，并加入0.3重量份的钛酸四异丙醇酯，160℃继续回流反应7h；然后缓慢降温至130℃，缓慢5重量份的甲基丙烯酸羟丁酯，继续反应3h，然后冷却至室温，然后减压蒸馏除去稀释剂，即得活性含氟聚酰亚胺低聚物Y。
实施例3
一种活性含氟聚酰亚胺低聚物Z的制备方法，包括以下步骤：
将32重量份的二氟均苯四甲酸酐、10重量份的对苯二胺加入到反应装置中，加入稀释剂配制成质量分数为50％的溶液，通氮气15min并启动搅拌器搅拌均匀，加热至130℃反应1h；然后缓慢升温至180℃，并加入0.05重量份的钛酸四丁酯，150℃继续回流反应4h；然后缓慢降温至140℃，缓慢6重量份的5-氨基-1-戊烯，继续反应2h，然后冷却至室温，然后减压蒸馏除去稀释剂，即得活性含氟聚酰亚胺低聚物Z。
实施例4
一种基于活性含氟聚酰亚胺的UV防粘抗酸保护膜的制备方法，包括下述步骤：
(1)将配方量的UV保护膜层A施于PET膜(基材膜)一个表面上，然后经紫外灯照射硬化；然后将丙烯酸压敏胶施于上述基材膜的另一个表面，经干燥后，即形成使用膜层，其中，压敏胶一面即为压敏胶面Ⅱ。
(2)将丙烯酸压敏胶施于PVC膜(剥离膜层)的一面，形成粘性剥离膜层，压敏胶一面即为压敏胶面Ⅰ；然后将粘性剥离膜层的压敏胶面Ⅰ粘于(1)中使用膜层的压敏胶面Ⅱ，即得基于活性含氟聚酰亚胺的UV防粘抗酸保护膜。
其中，所述的UV保护膜层A，由以下配方组成经光固化而成：活性含氟聚酰亚胺低聚物X15重量份、双2,4,6-三甲基苯甲酰苯基氧化膦0.5重量份、聚氨酯丙烯酸酯15重量份、乙烯基聚硅氧烷(20mPa·s、乙烯基含量为10％)10重量份、丙烯酸异冰片酯8重量份、丙烯酸类流平剂0.5重量份。
实施例5
一种基于活性含氟聚酰亚胺的UV防粘抗酸保护膜的制备方法，包括下述步骤：
(1)将配方量的UV保护膜层B施于有机硅薄膜(基材膜)一个表面上，然后经紫外灯照射硬化；然后将水性聚氨酯压敏胶施于上述基材膜的另一个表面，经干燥后，即形成使用膜层，其中，压敏胶一面即为压敏胶面Ⅱ。
(2)将水性聚氨酯压敏胶施于PE膜(剥离膜层)的一面，形成粘性剥离膜层，压敏胶一面即为压敏胶面Ⅰ；然后将粘性剥离膜层的压敏胶面Ⅰ粘于(1)中使用膜层的压敏胶面Ⅱ，即得基于活性含氟聚酰亚胺的UV防粘抗酸保护膜。
其中，所述的UV保护膜层B，由以下配方组成经光固化而成：活性含氟聚酰亚胺低聚物Y10重量份、2,4,6-三甲基苯甲酰二苯基氧化膦3重量份、聚氨酯丙烯酸酯30重量份、乙烯基聚硅氧烷(粘度为100mPa·s、乙烯基含量为6％)5重量份、甲基丙烯酸异冰片酯15重量份、丙烯酸类流平剂0.5重量份。
实施例6
一种基于活性含氟聚酰亚胺的UV防粘抗酸保护膜的制备方法，包括下述步骤：
(1)将配方量的UV保护膜层C施于PP膜(基材膜)一个表面上，然后经紫外灯照射硬化；然后将聚氨酯压敏胶施于上述基材膜的另一个表面，经干燥后，即形成使用膜层，其中，压敏胶一面即为压敏胶面Ⅱ。
(2)将聚氨酯压敏胶施于PVC膜(剥离膜层)的一面，形成粘性剥离膜层，压敏胶一面即为压敏胶面Ⅰ；然后将粘性剥离膜层的压敏胶面Ⅰ粘于(1)中使用膜层的压敏胶面Ⅱ，即得基于活性含氟聚酰亚胺的UV防粘抗酸保护膜。
其中，所述的UV保护膜层C，由以下配方组成经光固化而成：活性含氟聚酰亚胺低聚物Z13重量份、1-羟基-环己基苯基甲酮1重量份、聚氨酯丙烯酸酯19重量份、乙烯基聚硅氧烷(粘度为40mPa·s、乙烯基含量7％)8重量份、丙烯酸异冰片酯10重量份、丙烯酸类流平剂0.3重量份。
性能检测：实施例4、实施例5、实施例6基于活性含氟聚酰亚胺的UV防粘抗酸保护膜的UV保护膜层面的检测数据如下：

Claims (7)

1.一种基于活性含氟聚酰亚胺的UV防粘抗酸保护膜，其特征在于，由使用膜层、粘性剥离膜层组成；其中，粘性剥离膜层由剥离膜和压敏胶面组成，压敏胶面位于使用膜层和剥离层之间；使用膜层由基材膜和施于其两面的UV保护膜层组成；
其中，所述的UV保护膜层，由以下配方组成经光固化而成：活性含氟聚酰亚胺低聚物10～15重量份、光引发剂0.5～3重量份、聚氨酯丙烯酸酯15～30重量份、乙烯基聚硅氧烷5～10重量份、活性稀释剂8～15重量份、丙烯酸类流平剂0.2～0.5重量份。
2.根据权利要求1所述的一种基于活性含氟聚酰亚胺的UV防粘抗酸保护膜，其特征在于，所述的基材膜为PET膜、PP膜、有机硅薄膜、聚氨酯薄膜中的至少一种；所述的剥离膜为PVC膜、PE膜中的至少一种；所述的压敏胶为丙烯酸压敏胶、聚氨酯压敏胶、水性丙烯酸压敏胶、水性聚氨酯压敏胶中的至少一种。
3.根据权利要求1所述的一种基于活性含氟聚酰亚胺的UV防粘抗酸保护膜，其特征在于，所述的活性含氟聚酰亚胺低聚物的制备方法，包括以下步骤：将30～35重量份的二氟均苯四甲酸酐、10重量份的对苯二胺加入到反应装置中，加入稀释剂配制成质量分数为50～70％的溶液，通氮气15～30min并启动搅拌器搅拌均匀，加热至100～130℃反应1～3h；然后缓慢升温至150～180℃，并加入0.05～0.5重量份的催化剂，150～180℃继续回流反应4～8h；然后缓慢降温至120～140℃，缓慢3～6重量份的活性封端剂，继续反应2～4h，然后冷却至室温，然后减压蒸馏除去稀释剂，即得活性含氟聚酰亚胺低聚物；其中，所述的催化剂为钛酸四异丙醇酯、三异丙醇铝酸酯、钛酸四丁酯中的至少一种，所述的活性封端剂为5-氨基-1-戊烯、丙烯酸羟丁酯、甲基丙烯酸羟丁酯中的至少一种。
4.根据权利要求1所述的一种基于活性含氟聚酰亚胺的UV防粘抗酸保护膜，其特征在于，所述的光引发剂为安息香乙醚、1-羟基-环己基苯基甲酮、安息香双甲醚、二苯甲酮、2-羟基-2-甲基-1-苯基-1-丙酮、2,4,6-三甲基苯甲酰二苯基氧化膦、双2,4,6-三甲基苯甲酰苯基氧化膦中的至少一种。
5.根据权利要求1所述的一种基于活性含氟聚酰亚胺的UV防粘抗酸保护膜，其特征在于，所述的乙烯基聚硅氧烷的粘度为20～100mPa·s，乙烯基含量为6％～10％。
6.根据权利要求1所述的一种基于活性含氟聚酰亚胺的UV防粘抗酸保护膜，其特征在于，所述的活性稀释剂为丙烯酸异冰片酯、甲基丙烯酸异冰片酯、二缩三羟甲基丙烷四丙烯酸酯中的至少一种。
7.根据权利要求1所述的一种基于活性含氟聚酰亚胺的UV防粘抗酸保护膜，其特征在于，其制备方法，包括下述步骤：
(1)将配方量的UV保护膜层在基材膜的先后施于两个表面上，然后经紫外灯照射硬化，最后形成使用膜层。
(2)将压敏胶施于剥离膜层的一面，形成粘性剥离膜层；然后将粘性剥离膜层的压敏胶面粘于使用膜层的两面，即得基于活性含氟聚酰亚胺的UV防粘抗酸保护膜。
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